One of the unique features of SpectraProof Professional is the ability to work with precise spectral math and prediction for spot colors. Measured or synthesizes spectral color channels are layered in SpectraProof on top of CMYK or other color layers. SpectraProof calculates overprinting, etc., on a spectral basis. It provides an accurate spectral prediction of the printed result for any multicolor layout with spot colors.
Even ramps for spot colors can be either synthesized or spectrally measured within SpectraProof. This enhances the spectral prediction of the softproof.